Obstetrical instrument.



PATENTED JULY 28 H. MEN'DBNHALL. OBSTETRICAL INSTRUMENT.

A-BPLIOATION FILED MAY 18, 1903.

N0 MODEL.

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UNITED 'STATESvv PATENTV Patented-J'uly 28, 1903.

OFFICE.

OBSTETRICAL INSTRUMENT.

SPECIFICATION fOI'ming part Of Letters Patent 734,586, dated July 28, 1903.

Application filed May I8, 1903- Serial No. 157,710. (No model.)

To ctZZ wiz/0m, t may con/cern:

Be it known that I, HIRAM MEDENHALL.

residing at Audubon, in the county of Audubon and State of Iowa, have invented certain useful Improvements in Obstetrical Instrumen ts; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to a new and novel improvement in obstetrical instruments to be used for veterinary purposes.

The aim of my invention is to provide an obstetrical instrument which shall be easily operated and be simple in construction.

In the accompanyingdrawingslhave shown, in Figure 1, a top View of the obstetrical instrument embodying my inven tion, while Fig. 2 shows a side elevation.

In carrying out the aim of my invention I construct two members A and B, each preferably being made of round tool-steel, which is preferably polished and plated. These members are practically identical in construction, with the exception that the member A is provided with a laterally-projecting termination f, acting as a stop when the instrument is closed, so that but very little room is taken up by this instrumentwhen not in use. At a suitable point each of these members is fiattened, as is shown at c, and this portion is perforated to receive a pin e, this pin being positioned a little more than one-third of the way back from the point of the instrument. At each end each member A and B is fiattened and is provided with two eyelets b, and through these eyelets bextend two snaringstrings, (marked 4 and 5,) each entering from the same side, as disclosed in Fig. 1. These strings are of any suitable length andare preferably longer than the instrument. Near the perforated end each member A and B is provided with a straight portion a, so that these ends when theinstrument is opened come more nearly parallel to one another, as

shown in Fig. 1. At a point near the pivot e l it will be noticed that each member is curved,

-as is shown at o, and thisv curve is necessary in order that the instrument may extend over the pelvis-bone in using the same.

In providing two sharing-strands the object to lbe operated upon is doubly engaged, so that the two strings give a double service, dividing the strain. Y

In referring to Fig. 1 it will further be noticed that each member A and'B is curved outward, as shown at w, to provide a space for the operators iinger to come between, as the snaring-strands may beV tied at a'suitable point and be operated by one or more fingers engaging the strands, which fingers for the sake of convenience will work between the members A and B. From this it will be seen that the advantages are found inthe fact that I provide two members, one of which is provided with a stop, each member further being provided with two eyelets, two snaringstrands passing through said eyelets, said strands extending parallel in front, while each is further provided with an upward -bend v and an outward bend w.

It is of course understood that these instruments may be made of any suitable size and material, and

Having thus described my said invention,

what I claim as new, and desire to secure by United States Letters Patent, is-

An obstetrical instrument, comprising two counterpart members, one of said members being provided with a lateral projecting stop, each member terminating in a. forward, doubly perforated section, two snaringstrands passing through said perforations,

said members being pivotally connected, each member being outwardly and upwardly curved in the manner set forth.

In testimony whereof I aftlx my signature in presence of two witnesses.

HIRAM MENDENI-IALL.

Witnesses:

W. M. MCFARLANE, B. A. STOCKING. 

